typedef struct {
DWORD dwCallback;
DWORD dwReturn;
DWORD dwItem;
} MCI_GETDEVCAPS_PARMS;
| Fields | dwCallback | The low-order word specifies a window handle used for the MCI_NOTIFY flag. | 
| dwReturn | Contains the return information on exit. | |
| dwItem | Identifies the capability being queried. | |
| See Also | MCI_GETDEVCAPS | MCI_INFO_PARMS | 
typedef struct {
DWORD dwCallback;
LPSTR lpstrReturn;
DWORD dwRetSize;
} MCI_INFO_PARMS;
| Fields | dwCallback | 
| lpstrReturn | Specifies a long pointer to a user-supplied buffer for the return string. | 
| dwRetSize | Specifies the size in bytes of the buffer for the return string. | 
| See Also | MCI_INFO |